You can enter the Interaction module at any time during an ABAQUS/CAE session by clicking Interaction in the Module list located under the toolbar. Interaction, Constraint, Connector, Special, Feature, and Tools menus appear on the main menu bar; and a Step list appears under the toolbar.
To exit the Interaction module, click another module in the Module list. You need not take any specific action to save objects created in the Interaction module before exiting the module; they are saved automatically when you save the entire model by selecting FileSave or FileSave As from the main menu bar.